Separate the raw FLAC muxer from raw.c to its own file, flacenc.c.

Originally committed as revision 17601 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 74 insertions, 0 deletions

diff --git a/libavformat/flacenc.c b/libavformat/flacenc.c
new file mode 100644
index 0000000000..093a07a823
--- /dev/null
+++ b/libavformat/flacenc.c
@@ -0,0 +1,74 @@
+/*
+ * raw FLAC muxer
+ * Copyright (c) 2006-2009 Justin Ruggles
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avformat.h"
+
+static int flac_write_header(struct AVFormatContext *s)
+{
+    static const uint8_t header[8] = {
+        0x66, 0x4C, 0x61, 0x43, 0x80, 0x00, 0x00, 0x22
+    };
+    uint8_t *streaminfo = s->streams[0]->codec->extradata;
+    int len = s->streams[0]->codec->extradata_size;
+    if(streaminfo != NULL && len > 0) {
+        put_buffer(s->pb, header, 8);
+        put_buffer(s->pb, streaminfo, len);
+    }
+    return 0;
+}
+
+static int flac_write_trailer(struct AVFormatContext *s)
+{
+    ByteIOContext *pb = s->pb;
+    uint8_t *streaminfo = s->streams[0]->codec->extradata;
+    int len = s->streams[0]->codec->extradata_size;
+    int64_t file_size;
+
+    if (streaminfo && len > 0 && !url_is_streamed(s->pb)) {
+        file_size = url_ftell(pb);
+        url_fseek(pb, 8, SEEK_SET);
+        put_buffer(pb, streaminfo, len);
+        url_fseek(pb, file_size, SEEK_SET);
+        put_flush_packet(pb);
+    }
+    return 0;
+}
+
+static int flac_write_packet(struct AVFormatContext *s, AVPacket *pkt)
+{
+    put_buffer(s->pb, pkt->data, pkt->size);
+    put_flush_packet(s->pb);
+    return 0;
+}
+
+AVOutputFormat flac_muxer = {
+    "flac",
+    NULL_IF_CONFIG_SMALL("raw FLAC"),
+    "audio/x-flac",
+    "flac",
+    0,
+    CODEC_ID_FLAC,
+    CODEC_ID_NONE,
+    flac_write_header,
+    flac_write_packet,
+    flac_write_trailer,
+    .flags= AVFMT_NOTIMESTAMPS,
+};